The number obtained on rationalising the dinominator of 1/√7-2 is
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root 7 + 2 / 3
root 7 + 2 / 31/root7 - 2 × root7 + 2 / root 7 + 2
root 7 + 2 / 31/root7 - 2 × root7 + 2 / root 7 + 2= root 7 + 2 / 3
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